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Siemens MICROMASTER 1790L811A

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1790L811A

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The Siemens 1790L811A is a critical component of the MICROMASTER series, known as a versatile I/O module. It accommodates various digital and analog input/output needs, along with multiple communication possibilities such as Profibus, Modbus, CANopen, or Ethernet.

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Technical specifications for 1790L811A

ManufacturerSiemens
Product LineMICROMASTER
Part Number1790L811A
Weight0.25 lbs (0.11 kg)
NameMICROMASTER I/O Module
I/O TypeDigital Inputs/Outputs, Analog Inputs/Outputs
Communication ProtocolProfibus, Modbus, CANopen, or Ethernet
Operating Voltage24V DC
Input Voltage Range20.4V to 28.8V DC
Digital Inputs8 or 16 inputs at 24V DC
Digital Outputs8 or 16 outputs at 24V DC
Analog Inputs2 to 4
Analog Outputs2 to 4
Signal Types Supported0-10V, 4-20mA, TTL, PNP/NPN
Input Impedance for Analog Inputs10 kΩ
Output Resolution12-bit resolution
Mounting TypeDIN rail or panel mount
Protection RatingIP20
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The MICROMASTER I/O Module, part number 1790L811A from Siemens, is engineered for flexibility in industrial applications. It provides an array of I/O capabilities with options for both digital and analog interfaces. Users can integrate between 8 and 16 digital inputs and outputs, all operating at 24V DC. For analog processing, the module supports between 2 to 4 inputs and outputs, effectively catering to a variety of control requirements. Signal management is versatile, accommodating 0-10V, 4-20mA, TTL, and both PNP/NPN signal types.

This module functions efficiently with an operating voltage rated at 24 volts DC and accepts a voltage range from 20.4V to 28.8V DC. The input impedance for analog inputs stands at 10 kΩ, ensuring compatibility with a wide range of sensors and systems. Additionally, the output resolution of 12 bits enables precise data representation, enhancing overall system performance.

The 1790L811A is designed for easy installation, either through DIN rail mounting or panel mounting, providing flexibility for varying setups. With a protection rating of IP20, it is best suited for indoor environments with little exposure to dust and moisture. Its compact dimensions measure 120mm in height, 100mm in width, and 25mm in depth, making it an ideal solution for systems where space is at a premium.